9v LSD?

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Haggai
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9v LSD?

I want to buy some 9v rechargeable, I seem to gather tools that need them. I want NiMH, not Li-ion.

I've seen the following that claim to be LSD, and have similar capacity to standard 9v NiMH that I've seen (200 vs 250).

Tenergy Centura

Camelion

Uniross Hibryo

instant

Do you have any experience with them?

Are there any others?

 

Will tools that need 9v work with these 8.4v batteries?

 

Also - regarding a charger. I have the universal 2$ charger that also has 9v ports. Is this good enough? Do I want any special charger for 9v?

Edited by: Haggai on 02/25/2012 - 15:53
fyesilova
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I have the Camelion one and use inside a radio alarm clock. it keeps charge even after 6-12 months. I am using GP universal NiMh charger with 9V port.

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changsn
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turboBB
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I recently purchased 2 x Tenergy Centura's and can say they are absolutely EXCELLENT (too bad I can't say the same about their AAA 1000 mAh, but I digress...).

I've been using them in my Extech HD450 light meter and RS DMM.  They hold their charge well and last much better than the Engergizer's (non-LSD, 7.2V 150mAh) I purchased a while back.

They're charged in my universal AA/AA/9V Energizer charger but I think it's just a dumb slow charger that doesn't ever truly stop charging so I usually monitor the charge and yank them off after a few hours.  They come of the charger around 9.2V or so.

Hope that helps.

Cheers,
Tim

Don
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I've tried just about every PP3 rechargeable (Also MN1604, PP3-HP, 006P, 6LR61, 6LF22, 6LF62) on the market with my assorted meters and none of them give trustworthy results.

My only use for these batteries is in meters so i buy bulk packs of good alkalines for them. If i could get reliable rechargeable ones I'd buy them in an instant.

 

I own a lot of them that can't be trusted for meters.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

dthrckt
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i have two energizer 9v nimh.  absolutely worthless, but maybe because they went too long w/o a maintenance charge

Haggai
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The Tenergy and Camelion were my favorite options, and with them being about the same price, looks like I'll flip a coin between them... 

changsn, thanks, but it is twice as expensive as the other options (6$ shipping to Israel), so I think I won't take it.

Don, in what way 9v rechargeables can't be trusted for meters?

turboBB
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Haggai wrote:
Don, in what way 9v rechargeables can't be trusted for meters?

(not Don but putting in my 2 cents Smile)

In general meter readings tend to be off when the voltage is low.  However, as mentioned my Tenergy's come off the charger around 9.2-9.3v whereas I could never get the Engerizers above 8.3v or so.  Not sure what devices you'll be using these in but if it's meters and the readings will be critical then I'd recommend getting some good quality 9V Lithiums.

For me personally, I haven't experienced any adverse readings with either these or even the Energizers.

Cheers,
Tim

Haggai
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Won't the meter alert for low battery in this case?

Otherwise how is this different from using slightly discharged primaries?

 

I use 9v for: IR thermometer, ultrasonic distance meter, DVB-T signal strength meter, luxmeter.

 

I currently don't have any multimeters that use 9v (well, I do, but it's the crappy 3$ meters I don't use), but I have one that uses AAAs. So I shouldn't use it with rechargeable AAAs and stick to primaries? And if so - does it make any difference if I use alkaline or lithium primaries?

turboBB
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What I've read (but have not personally experienced) is that it tends to affect the readings before the low battery alert ever goes off.

Again, totally happy w/the Tenergy's so they get my vote here.

Haggai
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Okay, thanks.

I guess 9.6v batteries (like the Imedion LSD 9.6v) can be useful in voltage sensitive situations, but they're expensive compared to the 8.4v LSDs, so do I really need them? Arrggh, decisions, decisions... Smile

turboBB
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I really don't think so and besides that's a heckuva lot to pay for one battery to try.

I got the two pack (there's a code for 5% off):
http://www.batteryjunction.com/tenergy-10002.html

I think they were the cheapest at the time I purchased this but definitely look around.  For just under $9 for two, it's certainly worth a try to see if these will suit your needs.

Good luck!

Don
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Haggai wrote:

Don, in what way 9v rechargeables can't be trusted for meters?

 

Basically self-discharge and I suspect grossly overcharging them at some time in the past. While I disapprove strongly of disposable batteries, I couldn't trust the numbers I got from several meters - they'd read the same on alike/lithium cells but would give different readings with the NiMH 9V cells - which always seemed to be flat when I wanted to use the meters. I've not bought any LSD ones or tried them in the meters though. The low battery warning is for the gradually declining alike/lithium curve, not the "fall off a cliff" typical NiMH discharge.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...